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Finding the Fourth Proportional to 57,787.70, 86,693.70 and 32,807.30

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Solution

The fourth proportional to 57,787.70, 86,693.70 and 32,807.30 is: 49,217.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,787.70 : 86,693.70 = 32,807.30 : x
  2. Step 2: Convert to fraction form
    57,787.70/86,693.70 = 32,807.30/x
  3. Step 3: Cross multiply
    57,787.70x = 86,693.70 × 32,807.30
  4. Step 4: Simplify right side
    57,787.70x = 2,844,186,224.01
  5. Step 5: Solve for x
    x = 2,844,186,224.01/57,787.70
  6. Step 6: Final answer
    x = 49,217.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.